ignore ctags
Created basic SBT build.
Fixed some SBT dependencies.
SBT build now has the correct organization name and repositories.
get sbt working (all but scriptengine for now..)
get rid of JUnit
comment about scriptengine
update readme: sbt usage
Merge branch 'sbt'
Merge branch 'master' into GremlinScalaPipeline-rearchitect

Conflicts:
	src/test/scala/com/tinkerpop/gremlin/scala/filter/BackStepTest.scala
	src/test/scala/com/tinkerpop/gremlin/scala/filter/RangeStepTest.scala
	src/test/scala/com/tinkerpop/gremlin/scala/sideeffect/SideEffectStepTest.scala
	src/test/scala/com/tinkerpop/gremlin/scala/transform/MapStepTest.scala
	src/test/scala/com/tinkerpop/gremlin/scala/transform/ScatterStepTest.scala